Geochemistry of the Tioueine Pan‐African granite complex (Hoggar, Algeria)

Abstract The Tioueine complex belongs to a group of concentrically zoned late Pan‐African granites intruding the eastern branch of the Pharusian belt in the Hoggar. It comprises an outer mass of alkaline granites, both hypersolvus and subsolvus, cross‐cut by arcuate dykes of hypersolvus ferroedenite‐bearing syenite and granite, and a later central core of monzonitic granite. Tioueine granites are A‐type, alkaline, and display only moderate postmagmatic alteration. As a whole, the complex appears to illustrate the transition from orogenic calc‐alkaline (monzonitic) to anorogenic alkaline magmatism.